Chemical changes in Chernozems as affected by water erosion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F23%3A10176732" target="_blank" >RIV/00027006:_____/23:10176732 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Chemical changes in Chernozems as affected by water erosion

Popis výsledku v původním jazyce

Chernozems are the most intensively used agricultural soils in the Czech Republic. They are negatively influenced by degradation processes, especially water erosion and pedocompation. The main hypothesis of this research is that the maintenance of soil organic matter and appropriate agrotechnical practices can reduce the negative consequences of intensive land use and can increase the stability of agroecosystems. In this paper, the changes in organic matter content and quality and nutrient contentwere studied. The studied locality was selected near the village of Bošovice (South Moravia, Czech Republic). The soil type was classified as Calcic Chernozem (IUSS Working Group WRB, 2022). Total organic carbon content was determined by the oxidimetric titration method. Total nitrogen content was determined according to the Kjeldahl method. Available nutrients content was determined by Mehlich III method. Humic substances quality was evaluated by UV-VIS and infrared spectroscopy. Results were processed by one-way ANOVA analysis and Fisher test (p&lt;0,05). Obtained results documented, that during the period 2018-2022, there were significant changes in studied parameters. There was a statistically significant decrease in content and quality of humic substances and available nutrient content on eroded site. Improving of agro-technical measures and the application of organic manure or exogenous organic material is recommended. Increase of soil organic matter is essential to supply plants with nutrients and water, to prevent water erosion and overall stabilize the whole agro-ecosystem.

Název v anglickém jazyce

Chemical changes in Chernozems as affected by water erosion

Popis výsledku anglicky

Chernozems are the most intensively used agricultural soils in the Czech Republic. They are negatively influenced by degradation processes, especially water erosion and pedocompation. The main hypothesis of this research is that the maintenance of soil organic matter and appropriate agrotechnical practices can reduce the negative consequences of intensive land use and can increase the stability of agroecosystems. In this paper, the changes in organic matter content and quality and nutrient contentwere studied. The studied locality was selected near the village of Bošovice (South Moravia, Czech Republic). The soil type was classified as Calcic Chernozem (IUSS Working Group WRB, 2022). Total organic carbon content was determined by the oxidimetric titration method. Total nitrogen content was determined according to the Kjeldahl method. Available nutrients content was determined by Mehlich III method. Humic substances quality was evaluated by UV-VIS and infrared spectroscopy. Results were processed by one-way ANOVA analysis and Fisher test (p&lt;0,05). Obtained results documented, that during the period 2018-2022, there were significant changes in studied parameters. There was a statistically significant decrease in content and quality of humic substances and available nutrient content on eroded site. Improving of agro-technical measures and the application of organic manure or exogenous organic material is recommended. Increase of soil organic matter is essential to supply plants with nutrients and water, to prevent water erosion and overall stabilize the whole agro-ecosystem.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

<a href="/cs/project/QK21010124" target="_blank" >QK21010124: Půdní organická hmota - hodnocení vybraných indikátorů kvality</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů